antisymmetry

in population biology
https://doi.org/10.1351/goldbook.14444
Quality of a population of bilaterally symmetrical individuals in which the difference in measurement of a trait made from the right and left sides of individuals from that population produces a bimodal distribution.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 840 [Terms] [Paper]